#include "Mutex.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <pthread.h>
#include <sched.h>
int ticket = 0;
pthread_mutex_t mutex;
pthread_cond_t cond = PTHREAD_COND_INITIALIZER;

void *routine(void *args)
{
    char *id = (char *)args;
    while (true)
    {
        pthread_mutex_lock(&mutex);
        if (ticket > 0)
        {
            usleep(1000);
            printf("%s sells ticket%d\n", id, ticket);
            ticket--;
            pthread_mutex_unlock(&mutex);
        }
        else
        {
            printf("%s wait on cond\n", id);
            pthread_cond_wait(&cond, &mutex);
            std::cout << "被叫醒了:" << id;
        }
        pthread_mutex_unlock(&mutex);
    }
    return nullptr;
}

int main()
{
    pthread_t t1, t2, t3, t4;
    pthread_mutex_init(&mutex, nullptr);
    pthread_create(&t1, nullptr, routine, (void *)"thread-1");
    pthread_create(&t1, nullptr, routine, (void *)"thread-2");
    pthread_create(&t1, nullptr, routine, (void *)"thread-3");
    pthread_create(&t1, nullptr, routine, (void *)"thread-4");

    int cnt = 10;

    while (true)
    {
        sleep(5);
        ticket += cnt;
        printf("主线程放票喽, ticket: %d\n", ticket);
        pthread_cond_signal(&cond);
    }

    pthread_join(t1, NULL);
    pthread_join(t2, NULL);
    pthread_join(t3, NULL);
    pthread_join(t4, NULL);
    pthread_mutex_destroy(&mutex);
    return 0;
}